Answer:
which is Choice B
This is the same as writing ![\frac{\sqrt{2}}{2}](https://tex.z-dn.net/?f=%5Cfrac%7B%5Csqrt%7B2%7D%7D%7B2%7D)
The second "2" is not under or inside the square root.
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Explanation:
Refer to the unit circle below. I've highlighted the angle 45 degrees and its corresponding sine value. It's the y coordinate of the point on the unit circle, for this particular angle.
Therefore, ![\sin(45^{\circ}) = \frac{\sqrt{2}}{2}](https://tex.z-dn.net/?f=%5Csin%2845%5E%7B%5Ccirc%7D%29%20%3D%20%5Cfrac%7B%5Csqrt%7B2%7D%7D%7B2%7D)
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You could alternatively draw out a 45-45-90 triangle. Let x be the leg length and the hypotenuse is 1 unit long. Solve
for x and you should get
as the length of each leg.
Then take the ratio of the opposite over hypotenuse to find the same answer mentioned above.
Y=kx
35=7k
35/7=k
k=5
y=5x
y=5×11
y=55
Answer:
4.1 >
Step-by-step explanation:
That is not true. For example, if you take PI . Rounded is 3.14. But if you were to do the square root of pi then it would be an IRRATIONAL number. so it's false. <span />